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Finding the Fourth Proportional to 1,176.26, 1,622.84 and 734.00

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Solution

The fourth proportional to 1,176.26, 1,622.84 and 734.00 is: 1,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.26 : 1,622.84 = 734.00 : x
  2. Step 2: Convert to fraction form
    1,176.26/1,622.84 = 734.00/x
  3. Step 3: Cross multiply
    1,176.26x = 1,622.84 × 734.00
  4. Step 4: Simplify right side
    1,176.26x = 1,191,152.78
  5. Step 5: Solve for x
    x = 1,191,152.78/1,176.26
  6. Step 6: Final answer
    x = 1,012.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.